altmann



2 SheetsSheet 1.

(No Model.)

Patented Feb. 2, 1892.

rlllllllllllllllll lllllllllll Mm" II II II II I II II II II II I|i=||l||l1lll llllliiilllllllllllll! am /Ward;

(No Model.) 2 Sheets-Sheet 2.

I J. ALTMANN. NUT SHEARING AND PUNGHING MACHINE.

No. 467,908. Patented Feb. 2, 1892.

NITED STATES PATENT OFFICE.

JULIUS ALTMANN, OF MILWAUKEE, VISCONSIN, ASSIGNOR OF TiVO-TIIIRDS TO \VM. l3. NEEVES AND GEORGE A. NEEVES, OF SAME PLACE.

NUT SHEARING AND PUNCHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 467,908, dated February 2, 1892.

Application filed March 27, 1891. Serial No. 386,631. (No model.)

To all whom it may concern: These cams are each secured to the shaft ad- Be it known that I, JULIUS ALTMANN, of justably by means of a key G and nuts or Milwaukee, in the county of Milwaukee and collars G, turning on the shaft againsttheir State of Wisconsin, have invented a new and respective ends. These cams are arranged useful Improvement in Nut Shearing and opposite each other in pairs on the two shafts 5 Punching Machines, of which the following 13 and B, and the cams are each formed in is a description, reference being had to the and by a reversely-directed oblique or screwaccompanying drawings, which are a part of directed channel in the periphery of a wheel this specification. on the shaft. Portions of each of the chan- My invention relates to a machine adapted nels are straight or circumferential at right 60 to shear and punch nut-blanks from a bar of angles to the shaft, as shown at H. metal; and the invention consists in the novel The post A is located about centrally of mechanism hereinafter to be claimed for cutthe frame and a shearing-plate I is bolted ting or shearing the nut-blank from a bar of thereto, which shearing-plate has a transverse metal and punching the bolt-aperture thereaperture 1' of the size and form in which the 65 from and forcing the blank out of the manut-blank is to be out. A recess or channel chine. I is also advisedly formed in the face of the In the drawings, Figure I is a top plan view plate I from the aperture I outwardly, which of the complete machine, a part of the frame recess preferably widens somewhat toward only being broken away to exhibit the operthe outer edge of the plate. This recess is 7o ative mechanism. Fig. 2 is a longitudinal adapted to receive the bar of metal from vertical section of the machine on line 2 2 of which the nut-blank is to be cut, and the walls Fig. 1. Fig. 3 is a transverse vertical section of the recess are shouldered to assist in holdof the machine on line 3 3 of Fig. 1, looking ing the bar in position for the action of the toward the right. Fig. 4 is a longitudinal shearing-punch thereon. In front of the central section of one of the cams or eccenshearing-plate a shearing-punch K is fixed tries on a fragment of a shaft. Fig. 5 is a removably in a punch-stock K, which punchfront end view of the clearing-punch and of stock is supported reciprocally endwise in a portion of the transverse arms secured therebearings therefor in the frame. A cross-head 0 to, which ride in the cams, one arm being or transverse arms L are secured rigidly but shown to its extremity and partly in central adjustably and removably to the punch-stock section to show interior construction. Fig. 6 K, which arms at their respective outer ends is an end view of the arm shown in Fig. 5, ride in the cams D and D and are actuated parts being broken away for better illustrathereby. Anti-friction wheels M are axled on 3 5 tion. the extremities of the arms L and on the ex- 8 5 The frame A is of suitableform and strength tremities of similar arms on other punches tosupport the operative mechanism. As a and furnish the bearing-surface of the sevpart of the frame there is included the ceneral arms 011 the several cams. The cams tral fixed post A and the longitudinal brace D and D are arranged to act concurrently 40 or stay rod A". Two shafts B B parallel to and harmoniously on the arms L, forcing the 0 each other have their journal-bearings in the punch K forwardly against the material from frame and are geared to each other by cogwhich the blank is to be cut, placed in front Wheels 0 0', giving them concurrent revoluof and against the shearing-plate I, and to cut ble motion, the shafts being driven by a belt the blank therefrom by forcing so much of 5 from the power-supply running on the fixed the material into the shearing-plate, thereby 5 pulley B. A fiy-wheel O is also fixed on separating it from the bar of metal. The the shaft B to steady and equalize the motion punch is then carried rearwardly by the furof the mechanism. The shaft 13 carries therether action of the cams until it reaches its on the cams D, E, and F, and the shaft B limit of travel. This punch and the other 50 carries corresponding cams D, E, and F. punches hereinafter to be described remain stationary at the extremes of their travel, while the ends of their arms travel in the circumferentially straight parts H of the several CttlIlS.

At the rear of the shearing-plate a clearing-punch N of the same size and form in transverse section as the punch K is fixed removably in the punch-stock N, which punchstock'is reciprocal in the frame and is provided with transverse arms 0, secured removably thereto. arms 0 are provided with anti-friction wheels M, which bear on the cams E and E, respectively, and are actuated thereby. These cams and this punch N are so arranged that the punch moves forward toward the shearing plate as the punch K moves away from it and forces the nut-blank out of the shearing plate, and is moved rearwardly before the punch K advances again.

At the rear of thepunch-stock N a punchstock P is reciprocal endwise in bearings therefor in the frame. carries a round punch P, which punch P and a portion of the stock P passes longitudinally in an aperture therefor through the stock N and the punch N. The punch-stock P is provided with transverse arms R, fixed thereon adjustably and removably, which arms are provided with anti-friction wheels M, riding on the cams F and F, by which the punch .is

actuated. The cams F and F, the arms R,

and the punch P are arranged to move forwardly just-after the punch K moves toward the shearingplate and the punch P enters the nut-blank while it is at rest in the shearing-plate and forces a core therefrom, forming the bolt-aperture, which core is pushed into the hollowend of the punch K andfalls therefrom through the side aperture Q. The

punch P moves rearwardly and is withdrawn from the nut-blank at the same time that the punch K moves away from the shearing-plate, and the nut-blank is then forced out of the shearing-plate by the forward movement of the clearing-punch N.

The punch-stock N is preferably made in two parts longitudinally, which parts are clamped together-by the two parts of the arms 0, which are secured together by bolts S. The

the arms 0, as just described. A pipe W sup-I plies water, which is discharged on the punch K to keep it cool, and a branch flexible pipe WV, leading from the pipe Wto a ducttherefor in the stock N, discharges water on the punch P for cooling it.

The extremities of the punch-- The punch-stock P 1 The arms WVhat I claim as new, and desire to secure by Letters Patent, is

-1. The combination, with a frame and a shearing-plate thereon, of a shearing-punch reciprocal endwise in the frame and cams on revolving shafts, which cams actuate the shearing-punch, substantially as described.

2. The combination, with a frame and a shearing-plate fixed thereon, of a reciprocal shearing-punch, a reciprocal core-punch, and cams on revolving shafts actuating the shearing and core punches, substantially as described.

3. The combination, with a frame and a shearing-plate fixed thereon, of a reciprocating shearing punch, a reciprocating corepunch, a reciprocating clearing-punch, and cams on revolving shafts actuating the several punches, substantially as described.

4. In a shearing and punching machine, a shearing-plate fixed on the frame, which shearing-plate hasan aperture of the form and size of the nut-blank to be produced, and a recess or channel radiating therefrom in the face of the plate for receiving the metal bar of material therein, substantially as described.

5. Inashearing and punching machine, the combination,withaframeandrevolvingshafts fixed therein, of wheels secured in pairs opposite each other on the shafts, which wheels are provided with corresponding cam-grooves in their peripheries, a punch-stock reciprocal endwise in the frame between the cam- .wheels, and arms fixed on the punch-stock and riding in the cam-grooves in the wheels, substantially as described.

6. In a shearing and punching machine, a reciprocating punch stock, arms secured thereto, anti-friction wheels axled thereon and rotating at right angles to the axis of the arms, and wheels on revolving shafts having camgrooves in their peripheries, in which the friction-wheels on the arms travel, all combined substantially as described.

7. In a shearing and punching machine, a fixed shearing-plate, a reciprocal clearingpunch arranged to enter the shearing-plate from the rear, and a coreepunch reciprocal JULIUS ALTMANN.

\Vitnesses:

C. T. BENEDICT, ANNA V. FAUST. 

